Antivibrator attachment for road machinery



Fan 14 1936.

J. C. GOOSE ANTIVIBRATOR ATTACHMENT FOR ROAD MACHINERY Filed April 2, 1935 3 Sheets-Sheet 1 Inventm Jimmy C. G m Ara Jan, 114 1936. J. c. coosE 2,027,677

ANTIVIBRATOR ATTACHMENT FOR ROAD MACHINERY Filed April 2, 1935 3 Sheets-Sheet 2 Inventor I Attorney ANTIVIBRATOR ATTACHMENT FOR ROAD MACHINERY Filed April 2, 1955 5 Sheets-Sheet I5 Inventor J5me a 6' 60056 Patented Jan. 14, 1936 UNITED STATES ANTIVIBRATOR ATTACHMENT FOR ROAD MACHINERY James Clifton Goose, Wilmar, Ark.

Application April 2, 1935, Serial No. 14,367

1 Claim.

This invention appertains to new and useful improvements in anti-vibrating means for road treating machinery such as graders.

The principal object of the present invention 5 is to provide an anti-vibrator for machinery of the character stated which will eliminate considerable vibration, holding the various joints tight to prevent motion therein and incidentally eliminate wear.

Other important objects and advantages of the invention will become apparent to the reader of the following specification.

In the drawings:

Figure 1 represents a top plan view of. a road 15 machine showing a grader board with a pair of the anti-vibrating units installed thereon.

Figure 2 is a fragmentary side elevational view of this structure shown in Figure 1.

Figure 3 is a sectional view taken substantially 20 on line 33 of Figure 1.

Figure 4 is a perspective view of the frame of one of the units.

Figure 5 is a perspective view of the roller supporting bell crank.

Figure 6 is a perspective view of one of the brackets.

Referring to the drawings wherein like numerals designate like parts, it can be seen that numeral 5 generally refers to a road treating machine 30 such as a grader which consists of the side members 6-6 of the machine frame which converge inwardly on conventional'machines as at I and provided with the front wheels 8. This type of machine generally has a cross bar 9 to which is 35 pivotally connected the hanger I'D which may involve a pair of diverging arms I l'-l I which curve back over the grader board 12 and hingedly connected to the back side of the board as at l3.

Theanti-vibratory units are connected to the 40 back side of the board as substantially shown in Figures 1 and 2 and because each is identical in construction with the other a description of one will sumce-for both.

In applying one of these units to the back side 45 of the grader I2, a pair of angle irons l4--l4 are secured to the board with the outstanding flange portions thereof in vertically spaced relation as shown in Figure 2. Numeral l5 represents a U-shaped frame, theouter portion of the leg members of which are offset as at [6 and extended as at l1, these extended portions being provided with openings it through which the pin [9 extends, this pin l9 extending through the 5 opening 20 at the heel portion of the bell crank 2|, which bell crank consists of a pair of L-shaped members A-A connected at their upper ends as at 22, while their lower ends are apertured as at 23 to'receive the short axle 24 on which the roller 25 is mounted.

A semi-circular shaped rack 26 is secured to the U-shaped member l as at 21, while a hand lever 28 is rockable on the cross pin 29 which passes through the U-shaped frame [5, this hand lever 28 being provided with a detent 29 operative w by the handle 30 for engagement with the rack 26. A rod 30 extends from the lever 28 and is pivotally connected thereto as at 3|, this rod being slidably disposed through the connecting member 22 at the upper ends of the bell crank element A-A. A coiled compressible spring 3| is convoluted around the rod and bridges one end against the collar 32 on the rod and at its opposite end against the connecting member 22 of the bellcrank. Thus it can be seen that the 20 spring 3| serves normally to tilt the bell crank in the direction of the arrow to cause the roller to tensionally engage the ground and this tension can be increased or decreased by adjusting the hand lever 28 along the rack 26. Obviously with this tensional roller or rollers on each grader board, there is less likelihood of continual rattling and vibration with consequent wear and tear on the equipment.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size, and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter. 1 35 Having described the invention, what is claimed as new is:'

In combination with the grader board of a road machine, a U-shaped member swingably mounted at its bight portion on the rear side of. said grader 40 boardand extending laterally therefrom, a bell crank arm mounted within said U-shaped member adjacent the free end thereof, a roller pivotally mounted on one end of the bell crank for engagement with the ground, an upstanding lever pivotally mounted on said U-shaped member, a rack on said member cooperable with a detent on said lever for securing said lever in a predetermined position, a link connecting said lever with the free end of the bell crank arm, a collar secured to said link adjacent said lever and a coil spring encircling said link one end thereof abutting said crank arm and the other end said collar on said link.

JAMES CLIFTON COOSE. 

